That one technically complete harem end ....
Since he got both twin
His ex-gf back with bonus of her little sister
And that side girl who pretty much want become his onahole only
Yup...she stopped at nothing but want drag down fumi into AV side ...
While this not NTR but it's still plain stupid ...and pretty much will destroy career for anyone else who involved with her ..include MC
Don't compare this girl with Yuki ...
Yuki didn't interrupt alya from being with kuze ...or rather ...she actually helped both of them , plus even after alya know both are sibling
TBH...author can make more story tbh...since we know that world have many isekai people ...and I actually interested with dildo-kun backstory ....on how he isekai into that world until he develops that town
LN wise have 4 vol ...same like another twins story that MC get both sister as gf ( but that one more R-15 with some eechi only ...while this one R-17/18 )